On my Windows 8.1 machine, I was able to apply this patch and import the default "cocos new" project into Android Studio, and build and run it successfully (it prompted me to install CMake, LLDB, and update HAXM, all of which succeeded).... however no breakpoints hit. I tried both "app" and "app_native" debug configurations. I tried on both emulator and physical Nexus 6 running each Android 23. I tried breakpoints in both Java and C++ code.
Is it necessary to have Android N Developer Preview installed? I think the problem might be that when I click "Edit Configurations..."->"Debugger", the "Symbol Directories" list is blank. I think LLDB does not know how to find the C++ symbols? Or maybe the CMake build script is using GCC still? I don't know.